Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· On-line Data
· References in the article
· Citations to the Article (20) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (1)
· Reads History
· Translate This Page
Narrowband HST imagery of the young planetary nebula Henize 1357
Bobrowsky, M.
AA(CTA Incorp., Rockville, MD, US)
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 426, no. 1, p. L47-L50 (ApJL Homepage)
Publication Date:
NASA/STI Keywords:
Astronomical Photography, Astronomical Photometry, Astronomical Spectroscopy, Interstellar Matter, Planetary Nebulae, Spaceborne Astronomy, Stellar Envelopes, Stellar Evolution, Stellar Mass, Stellar Models, Stellar Spectra, Stellar Structure, Visible Spectrum, Cameras, Charge Coupled Devices, Emission Spectra, H Alpha Line, H Beta Line, Hubble Space Telescope, Mathematical Models, Red Giant Stars, Stellar Winds
Bibliographic Code:


We present Hubble Space Telescope (HST) Planetary Camera observations showing the first optically resolved images of the planetary nebula Henize 1357 . The small size of this object has heretofore precluded optical investigations of its morphology. In H-beta, He 3-1357 appears to have an equatorial ring of enhanced density tilted approximately 56 deg from our line of sight. In addition, there are bubbles of gas above and below the ring with areas of decreased brightness near the poles where a fast stellar wind has broken through the red giant envelope. He 3-1357 has been evolving very rapidly, becoming a planetary nebula only within the past few decades. Assuming a distance of 5.6 kpc, the radius of the nebula is 0.02 pc, implying an expansion age of 2650 yr, although it has been ionized for no more than 40 yr. The H-beta flux is now 5.8 x 10-11 ergs/sq cm/s which implies an ionized mass of 0.2 solar mass, log L*/solar luminosity = 3.7, and a core mass of 0.59 solar mass.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints